This runs once. Pick how the system should store its data — you can be up and running in a single click.
Use the built-in database. Nothing to create in cPanel, no database name or password to find. The system builds its own storage in this folder and takes you straight in. Perfect for a laptop or a single office; you can move to MySQL later for many simultaneous users.
Enter the details from cPanel → Databases → MySQL Databases. They are tested and saved into config.local.php, which no future upload overwrites.
If this folder is not writable by the web server, create config.local.php by hand — copy config.local.sample.php.